What ash spirit and ash of war are you using? I have Lions Claw with heavy sword. It knocks her down. Mimic Tear does it a lot and takes a big chunk off. He does it, she gets up and I do it and we take turns like that. Worked a few times. You just gotta keep at her and not let her attack basically!
Second form though, does some huge AOE attack and kills my Mimic and I’m left foundering.
Talking of not letting her attack and interrupting her, I wonder if a weapon like the huge pinwheel thing would be good. You can charge at her with that and it does repeated hits?
When it comes to the choice of going after the frenzy fire what do people decide? Normally I like to honour characters agency in these situation but it seems like a knob thing to be able to prevent a death?
How did you know not to lock in? I was just trying to do all character stuff.
I didn't know in advance, just had a quick read once I'd beaten to boss to see options. I hadn't done the sewers at all at that point. I've still only seen one ending!
Spoiler:
I could have done the mainline rather than Ranni, but thought that would be easy to hit if I do a re-run...